Fall Equinox 2024 Southern Hemisphere 2024. In the northern hemisphere the autumnal equinox falls about september 22 or 23, as the sun crosses the celestial equator going south. As with the spring equinox this is a point of seasonal equilibrium with days and nights being almost.

As with the spring equinox this is a point of seasonal equilibrium with days and nights being almost. In the southern hemisphere, it will occur on march 20, 2024, at 03:07 gmt.